TY  - JOUR
T1  - Estimates of Genetic Trends for 305-Days Milk Yield in Holstein Friesian Cattle
AU - Bakir, Galip AU - Kaygisiz, Ali AU - Cilek, Suleyman 
JO  - Journal of Animal and Veterinary Advances
VL  - 8
IS  - 12
SP  - 2553
EP  - 2556
PY  - 2009
DA  - 2001/08/19
SN  - 1680-5593
DO  - javaa.2009.2553.2556
UR  - https://makhillpublications.co/view-article.php?doi=javaa.2009.2553.2556
KW  - Cattle
KW  -Holstein
KW  -milk yield
KW  -genetic trends
KW  -Turkey
AB  - The purpose of this study was to estimate the trends components of 305-days milk yield in Holstein Friesian Cattle Holstein cows raised at the Ceylanpinar state farm in Turkey between 1986 and 2007 years. The phenotypic, genetic and environmental trends for 305-days milk yield were found to be 106.91, 13.42 and 93.49 kg year<SUP>-1</SUP>, respectively. Despite, there was a correct decision in selection environmental factors affected yield more. In this respect, continuing the improving environmental factors which is composed of maintenance, feeding, milking practices and barn is recommended.
ER  -